1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9bdf9330dd4c2b3945c2bd41539b020406977b50c89e846d8c6a588eaa94cd. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd781023-406a-4524-b984-ca200bf656d7.json and https://artists.proofprofile.net/proofs/artist/cd781023-406a-4524-b984-ca200bf656d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cyberarchy (Original Picture Soundtrack)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a23f063270444344128ff70096be6189ed7823b48ff719260112715209f668b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32160695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618efeacdfb53d7ed67612bf0d5ba7bcc37e7e5de95e95020711fe0340fe967f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97febc59538a56ebde7309cc2754a03665236ed208980556d6783993e08fd7ed. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4ccdaf30ca1e8a01d087cd6aa4f4edea6154b5ede54982fe1c689c203474b2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f74d2becbb2d6e72896d3b3a94ac59d27e30045f1f1c23f1d07922d78d6b3f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9c6d040a32d358eab3ee44a8fd804c0f0028ee9d2866939a3b5d80c7b58357. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e17552407ade37cc6ce4a5eec3bec895ff7f83fe6a6337e413f1a8b9ad72057. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d34e0afdbece3eb7b6fbaab31a0761f1a66e3e19d7f3648b74d209e819f64fe. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcf9fc74b37bc34260169efec5a2ed02ce5eb734c69dbe00f7a95d12d44efeb. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28d3973fe934ae1b930e8dd64ec8b9f0b61321682d05d6c3a290af219ff2faa. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79776dda92e8edd28bee1398ea6e1195e0e3e21aecb50ef4d759de7c3d97501a. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:16:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff7bf0aa0991309aef8a017eb2aca7465edb683d36936c3ec7ce48a2d1ff65c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9c6d040a32d358eab3ee44a8fd804c0f0028ee9d2866939a3b5d80c7b58357. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2228833.
The Edenbound (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2499f19909437771174c810e56401804c0fa4518bfb1a85ffc76a9da2c2a772a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2585485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4e9ced576e953b793b9a54420ec4241ee205299e8ce58ed368ad618aa19935. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2585486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9100391ded8a1f44db618f0f01a817faa3472b3651499a5e8e7ce6121396cb9b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2585487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dfb8495844193fec33da02da1e81f8b79ff1d6acbc6f029014558e40857f26. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2585488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb815ecb6aca271e3f8f5b1eab68419a654d786eb8c40cecd66ce1073660841ea. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:07:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2585489.